Journal ArticleDOI
Annealing effect on the optical and photoelectrochemical properties of lead oxide
Wided Zerguine,Djamila Abdi,Farid Habelhames,Meriem Lakhdari,Hassina Derbal-Habak,Yvan Bonnassieux,Denis Tondelier,Jin Woo Choi,Jean-Michel Nunzi +8 more
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TLDR
In this article, the phase structure, optical properties, size and morphology of thin PbO films were investigated by scanning electron microscopy, X-ray diffraction and UV-vis spectroscopy.Abstract:
Effect of the annealing oxidation time of electrodeposited lead (Pb) on the phase formation of lead oxide (PbO) films is reported. The phase structure, optical properties, size and morphology of the films were investigated by scanning electron microscopy, X-ray diffraction and UV-vis spectroscopy. The relationship between structur and photoelectrochemical properties was investigated. Thin films of PbO produced via air annealing of electrodeposited lead consist of a mixture of two phases, orthorhombic (o -PbO) and tetragonal (t -PbO), that determine the material properties and effectiveness as absorber layer in a photoelectrochemical device. The proportion of tetragonal t -PbO increases for longer heat treatments. After 40 h, the sample consists mainly of tetragonal t -PbO. The p-type semiconducting behavior of lead oxide was studied by photocurrent measurements. Different heat treatments yield variations in the ratio of tetragonal to orthorhombic lead oxide that effect on device performances, where devices with a higher content of tetragonal t -PbO show higher photocurrent than with the orthorhombic phase.read more
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Journal ArticleDOI
Effects of annealing temperature and cooling rate on photo-electrochemical performance of pristine polycrystalline metal-chalcogenide film electrodes
TL;DR: In this article, the effects of annealing temperature and cooling rate on stability and performance of pristine metal chalcogenide film electrodes under PEC conditions are investigated. But the results show that pristine metal-chalcogenides are unstable to photo-corrosion and exhibit low conversion efficiency.
Journal ArticleDOI
Analysis of growth mechanisms and microstructure evolution of Pb+2 minor concentrations by electrodeposition technique
TL;DR: In this article , the electrodeposition technique has been used to deposit low concentrations of highly toxic lead (Pb) cations into a solution of nitrate at a constant potential of − 1 V on fluorine-doped tin oxide electrodes (FTO).
Posted ContentDOI
Analysis of Growth Mechanisms and Microstructure Evolution of Pb+2 Minor Concentrations by Electrodeposition Technique
Ahmed Rebey,R. Hamdi,B. Hammami +2 more
TL;DR: In this article, the electrodeposition technique has been used to deposit low concentrations of highly toxic lead (Pb) cations into a solution of nitrate at a constant potential of -1V on fluorine-doped tin oxide electrodes (FTO).
Journal ArticleDOI
Photoelectrochemical Properties of α-PbO Films Prepared by Spray Pyrolysis
Journal ArticleDOI
Physical, Static, and Kinetic Analysis of the Electrochemical Deposition Process for the Recovery of Heavy Metal from Industrial Wastewater
TL;DR: In this article , the authors used chronoamperometry to track the lead nucleation at advanced stages using X-ray diffraction, scanning electron microscopy, and energy-dispersiveX-ray techniques.
References
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Book ChapterDOI
Optical Properties of Amorphous Semiconductors
TL;DR: The sharp structure observed in the fundamental optical spectra of crystals, both vibrational and electronic, can be classified and interpreted by symmetry arguments based explicitly on the existence of long-range order as mentioned in this paper.
Journal ArticleDOI
Simulation of radiation shielding properties of glasses contain PbO
TL;DR: In this article, the mass attenuation coefficients of lead glass systems are simulated using MCNP5 code in the photon energy ranging from 0.015 to 10.5 MeV.
Journal ArticleDOI
Recycled high-density polyethylene plastics added with lead oxide nanoparticles as sustainable radiation shielding materials
Mohamed E. Mahmoud,Ahmed M. El-Khatib,Mohamed S. Badawi,Mohamed S. Badawi,Amal R. Rashad,Rehab M. El-Sharkawy,Rehab M. El-Sharkawy,Abouzeid A. Thabet +7 more
TL;DR: In this article, the authors investigated the γ-ray shielding characteristics of composite materials based on recycled high-density polyethylene (r-HDPE), which are low-cost and sustainable plastic wastes with different fractions of lead oxide nanoparticles (PbO NPs) and bulk powder.
Journal ArticleDOI
Photoconductivity in Tetragonal and Orthorhombic Lead Monoxide Layers
TL;DR: The photoconductive behavior of evaporated layers of lead monoxide in both the tetragonal and orthorhombic crystalline modifications has been investigated in this paper, where stoichiometry was controlled on a relative scale by controlling the oxygen pressure during sample preparation, yielding both n and p-type material.
Journal ArticleDOI
Structural and micro structural studies of PbO-doped SnO2 sensor for detection of methanol, propanol and acetone
TL;DR: In this article, the structural information of PbO-doped SnO 2 thick film sensor has been investigated with X-ray diffractometer (XRD) and scanning electron microscope (SEM).